Analysis of Jeffcott Rotor and Rotor with Disk Using XLrotor

Abstract

The work presented in this paper emphasizes on understanding the causes of failures in rotors and use of XLrotor tool in designing a reliable rotors. The approach to rotordynamics analysis through simulation tool is to determine the undamped/damped critical speeds, imbalance response with different configuration of bearings and mountings that causes change in modes and mode shapes in synchronous vibration. The main aim of this study is to know the critical speeds of rotors at design stage and predict the failure using XLrotor computational tool that improves reliability of system/machines by modifying the parameters. To measure and control the rotor extreme vibrations, the simulation feasible XLrotor tool plays vital role in redesigning the rotor models. In this paper, an attempt is made to study and analyze the developed rotors through simulation technique with validation for understanding the rotordynamics in reliability engineering. The Jeffcott rotor and shaft with disk is modeled, the rotating machine is solved and analyzed for undamped critical speeds and modes. Also, the impact of mass and stiffness on rotor model is studied and analyzed to define the failure. This study clearly shows overview of XLrotor software and also the power of simulation tool in reliability engineering.